Milling machine



G. KOMAREK.

MILLING MACHINE. 7 APPLICATION FHED MAYZ4 1920. 1,430,385. PatentedSept. 26, 1922.

7SHEETSSHEET I.

G. KOMAREK.

MILLING MACHiNE. APPLICATION FILED MAY/24.1920.

Patented Sept. 26, 1922.

7 SHEETS$HEET 2.

G. KOMAREK.

v MILLING MACHINE. -APPL|CAT|0N Fl! ED MAY 24. 1920.

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MILLING MACHiNE.

APPLICATION FILED MAY24.-1920. 1,430,385, PatentedSept. 26, 1922.

7SHEETS-SHEET 4-- fiwezziar' fwaa Kama/w? G. KOMAREK.

MILLING MACHINE.

APPLICATION FILED MAY 24, 1920.

Patented Sept. 26

V ZSHEETS-SHEET 5- fiawzior' 'usiaa ffamare/l G. KOMAREK.

MILLING MACHINE.

PatentedS t. 26, 1922.

7 TsSHEET 2.

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' MILLING MACHINE.

APPLICATION men MAY24,1920. 1ASQ35O.

all'ftll l1 ill ii il GUSTAY KOIVZABJEK, OF CHICAGO, ILLINOIS, ASSIGNOR,BY MESNE ASSIGNMENTS, TO

IVIALCOLMSON ENGINEERING AND MACHINE CORPORATION, OF ST. LOUIS, MIS-SOURI. A CORPORATION OF MISSOURI.

MILLING raaonrirn.

Application filed May 24,

To all wi e-m 2'6 may concern.

-l3e it known that I, GUsrAv KoMAnnK, a citizen of the United States,residing at Chicago, Illinois, have invented a certain new and usefulimprovement in Milling Machines, or" which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same, reference "eing hadto the accompanying drawings, forming part of this specification.

My invention relates generally to milling machines and more particularlyto a machine that is designed for milling cavities or recesses in theouter faces or metal blocks, and the form oi machine herein illustratedand described is specially designed for formiug cavities in theperipheral faces of mold rings that are utilized in briquet formingmachines.

it will be understood that in briquet presses utilizing pressure rollshaving cooperating mold cavities in their peripheral faces, it isessential that'the mold cavities be identical in size and form and thatthe members of each pair of co-operating cavities shall accurateregister with each other at the time the highestpressure is beingapplied to the briqueting material in said cooperating cavities, and itis the principal object of my invention to provide a relatively simple,eliicient, and easily operated machine which, in operation, will rapidlyand accurately mill in the peripheral surfaces of pair of mold rings, aseries of recesses or mold cavities, and the members of each pair ofco-operating cavities being formed with the same cutting tool, therebyinsuring uniformity of size, contour and alignment or r gister oi thecooperating cavities.

Further objects oil in invention are, to provide a mold ring millingmachine which, b reason of its semi-automatic action and the relativesmall amount of driving power required can be very economicallyoperated; to provide an improved Form of multiple cutter and arrangebearings therefor so that the cutter will all times be firmly held tooperate at a fixed point; to provide improved means for mounting theworl: upon the mi 'ne and feeding the work toward the ole cutter; and,further, to provide relatively simple means for accurately ad 1920.Serial No. 383,762.

justing and rigidly holding. the Work upon the machine while thecavities are being milled therein.

"With the foregoing and other objects in view, my invention consists incertain novel features of construction and arrangement of parts,hereinafter more fully described and claimed, and illustrated in theaccompanying drawings, in Which- Figure 1 is a side elevational view ofa milling machine of my improved construction;

Figure 2 is an end elevational view of the machine, said View beingtaken looking in the direction indicated by the arroW 2, F igure 1.

Figure 3 is an enlarged horizontal section taken approximately on theline 3-3 of Figure 1. I

Figure 4 is a vertical section taken approximately on the line li-41- ofFigure 3.

Figure 5 is a cross section taken on the line 55 of Figure 3.

Figure '6 is a cross section taken on the line 6-6 of Figure 3.

Figure 7 isan enlarged vertical section taken approximately on the line77 of Figure 5.

Figure 8 is a horizontal section taken on the line 88 of Figure 7.

Figure 9 is a horizontal section taken on the line 99 of Figure 7.

Figure 10 is an enlarged horizontal section taken on the line 101O ofFigure 4.

Figure 11 is an enlarged detail section taken approximately on the line1111 of Figure 3.

' Referring by numerals to the accompanying drawings, which illustrate apractical embodiment of my invention, 10, 1O desigiratelongitudinallydisposed rails, preferably I-beams which form the bed orbody oi the machine, said. rails being disposed parallel with eachother, connected to each other by suitable transverse rails 11, andsupported by suitable base blocks 12. Arranged for rotation in suitablebearings at one end of the frame or body of the machine is atransversely disposed power. driven shaft 13, and fixed on one endthereof are pulleys or belt wheels 14 and 15. Arranged at the oppositeend of the machine and mounted for rotation in a rocking hearing 16 is atransversely disposed. Shaft 17,

and which latter is also journaled in a block 18 that is arranged forsliding movement on a vertically disposed rod 19. Loosely connected tothis sliding block 13 is the inner end oi an arm 20 the outer end ofwhich is seated in a rock shaft 21 that is ournale il in a suitablebearing 22, and seated in said rock shaft and projecting outwardly andupwardly therefrom is a hand lever 23.

Fixed to shaft 17 adjacent to the rocking bearing 16 is a pulley 2 1-and operating thereupon and upon the pulley 15 is a belt 25. Secured tothe upper portions of the rails 10 adjacent to their ends aretransversely disposed l'llG'fllbGl'S 5'26 t i are protheir centers miihsuitable 701 a ongitudinally disposed sh it he; on is worru whee l iwith a worm '12:), a o'er being carried by the central portion of shaft17.

Under normal conditions or while the machine is in operation, this worin29 is in enga 'einent with the worm wheel 28, but by proper manipulationoi hand lever 23, Slldtt 21. may be rocked so as to swing arm 20downward, thereby moving bloclr f-l short distance downward on rod 19,which action disengages the worm from said worm wheel. (See dottedlines, Figure 2.)

Journaled in a bracket that projects upwardly from the bed or body ofthe 11121- chine is a short horizontally disposed shaft 31, and fixedthereon is a sprocket wheel. 32 and a toothed pinion 33 the lattermeshing; with the teeth of worin wheel 28. dour: naled in the upperportions of the brackets 34 that project upwardly from the bed or bodyof the machine is a horizontally dis posed shaft 35, the outer end ofwhich carries a sprocket wheel 36, and the latter being connected tosprocket wheel by chain 37. Carried by the inner end shaft 35 is handwheel 33.

The construction just described provid means for manually rotating shaft27 th purpose of which will be hereinafter more fully set forth.

Arranged to slide lengthwise on top of the central portions of rails 16are bed plat 39 that are adapted to carry the mold 1'11" during; themilling operations, and to retain these bed plates in proper positiondurin their sliding; movements, they are presided their undersides withdepending longitudinally disposed flanges 1-0 which bear di rectlyagainst the inwardly presented too flanges oil? the rails l0 andreinovably scoured to the lower portions of these are retaining rails orplates ll which underlie the inner edges oil the flanges of said rails10. (See 6.)

The upper faces of the b be formed so as to accomni actor of work being1 ichinc mt where the machine is used for milling lnold cavities in theperipheries o't mold inggs such, for instance, as are illustratedinlwgures l and 4 the upper 't'aces he bed plates re pro u'led withannular index ring receir a faces the same be ing SIHOQl l' and flat.

Conccntrically disposed within each of these annular faces is anupstanding annular flange Adapted to on the inner edge of each time 4:52and on top of the corresponding; flange 43 is an index plate or ring llwith which is formed integral an annular hub the lower portion of thesuch s ze as to lit snugly ular flange Formed in the plate or ring e lis a series so the sanie serving as guides for the ca itles that are tobe e inold rings, irpose of? locking each in do rir or indexes "formedin For their to the bed plate ll employ a key such as ill the latterbeing renlorably positioned in either one of a pair of radially disposedgroove, 28 that are "tor-med in the finished 4-2 of each bed. plate andthe inner end race of said hey being; adapted to enter any one of thenotches 4:1. (See Fig. 11,.)

For the purpose of teeding the bed plates and the work carried therebytoward and :n'iay om each 0th shaft 27 is provided w't to right andlotthand threaded portions v d 50 and arranged upon these threadedpotions nuts or bloclits 51 the upper p none of which are interlocked inany so i :h the bed plates 39.

tile manne wi 'icl fixed in any suitable manner to the tops oi rzf 10 ad between the bed plates l ne or bracket 52 which tor the tool ormultiple cutter forming a part of my inf-rention, and ffOl'll'lGd in thelower portion of this frame and at a central point between the rails 10a housing 53 through which passes the central portion ot shaft 2?.

in order to PlOVlC G stable bearing for the central 1 on oi this shaft27, a suitable collar 53 is listed to said shalt and said collar occuthe housing 53. Located in the portion of housing 53 is a ,1 lo. the low1d of the shaft ot the inultiple cutter oi the upper end of this sha"rotation in e f fllflwfl in the up l r'u'med to the shaft 1 heat s eachcomprisradially disposed blades to -10 rl s i, so "i m l J1 lbl l cog73S 00 Oct Lila/n 3 he cutting operations in the one on the edsges iua'l t w "131558 or 0 her work positi l s d M hi d l e ie of any y curredtitled or which latter are usually provided in the peripheries of moldrings utilized for forming fuel briquettes.

In order to permit the mold rings to be moved relatively close to eachother,'thereby enabling the milling tool or cutter to form relativelydeep mold cavities in the peripheries of said rings, the side faces ofthe central portion of frame are recessed or curved inwardly asillustrated in Figure 3, and to provide firm and substantial bearingsfor the central portion of the shaft 55 of the cutting tool, bearingplates 59 are secured to frame to the sides of the cutter or millingtool and said plates being provided with projecting portions 6 whichpass between the cuttings heads and bear directly upon the shaft betweensaid heads. The width of these portions is slightly less than thediameter of the shaft of the milling tool. and thus the work or moldrings in which the cavities are being formed can be moved toward eachother until their peripheries practically contact with the shaft of thetool and consequently permitting the cutting heads to out their entiredepth into said mold rings. The projections 60 form hearings whichfirmly support the shaft of the n'iilling tool 'or cutter between thecutting heads and prevent lateral deflection of said shaft in alldirections while in operation.

The upper end of the shaft 55 of the milling tool within bearing 56 isconnected in any suitable manner to a horizontally disposed worm wheel(51, and the latter engages a worm 62 that is carried by a horizontallydisposed shaft (33. This worm wheel is partially enclosed in a suitablehousing (34, and said shaft operates in suitable bearings that arecarried by the upper end of transverse frame 52. Fixed on the outer endof shaft 63 is a pulley 66 and operating thereupon and upon the pulley14 is a belt 67.

hen my improved machine is utilized for milling pockets or cavities inmold rings of the type illustrated in Figures 1 and 4, the bed plates 89are moved away from the milling tool andfrom each other a suiiicientdistance to enable workmen to place the moi d rings on the bed platessuch operations being facilitated by the use of a crane or derrick Tomore the bed plates away from each other or into positions to readilyreceive the mold rings, hand lever 28 is swung up ward and inward orinto the position shown by dotted lines Figure 2, which action rocksshaft 21 and swings the inner end of arm 20 and bearing block downwardthere by disengaging the worm 29 from'worm wheel 28. An operator nowmanipulates hand wheel 38 to rotate shaft 35 and through the connections36, 37 and 32, shaft 31 is rotated and the motion thereof will betransmitted. to shaft 27 through pinion 33 and worm wheel 28. As shaft27 is thus rotated, the nuts or blocks 51 operating upon the right andlefthand threaded portions 49 and 50 of said shaft and engaging the bedplates -39 will move the latter away from each other and away from thevertically disposed milling tool.

The mold rings A are now fitted onto the index rings 44 with the hubs orflanges 45 of the latter projecting upwardly into the openings in saidrings and the mold rings are locked to the index plates in any suitablemanner, preferably by means of keys such as B that enter suitablekey-ways that are formed in the inner faces of the mold rings, and theouter faces of the flanges or hubs 45.

The index rings are now locked to the bed plates by means of keys 47inserted in certain of the grooves 48 and recesses 46, as illustrated inFigure 11, after which the hand wheel 38 is properly manipulated torotate shaft 27 in the proper direction and effect a movement of the bedplates carrying the mold rings toward each other and toward the millingtool. WVhen, as a result of this operation, the peripheries of the moldrings have been brought into positions immediately adjacent to thecutting heads of the milling tool, hand lever 23 is pulled outward,thereby elevating bearing block 18 and effecting an engagement betweenworm 29 and worm wheel 28. Power is now applied to shaft 13 and therotary motion thereof will be transmitted through belt 25 and pulley 24to shaft 17 and the worm carried by the latter will transmit rotarymotion through worm wheel 28 to shaft 27, and as the latter rotates, thenuts or blocks 51 operating on the right and lefthand threaded portionsof said shaft will move the bed plates and the mold rings carriedthereby slowly toward each other and toward the milling tool. As shaft13 is driven, rotar is motion will be transmitted through belt 6 andpulley 66 to shaft 68, and worm 62 on the latter engaging worm wheel 61will impart rotary motion to the milling tool.

As the operation continues, the cutting edges 58 of the blades 57forming the cutting heads of the tool will engage and out into theperipheral surfaces of the mold rings A as the latter are slowly movedtoward the tool, and as a result, a plurality of mold. cavities whichare uniform in size and shape will be formed in said mold rings. (SeeFig. 10).

One of the particularly desirable featuresvof my invention is thecutting of both members of a pair of cooperating mold cavities with thesame cutting heads and in this connection it will be understood that themold rings when placed on their shafts in the briquet press occupy thesame relative positions as th y did upon the milling machine,

cutter heaos, is less than t re diameter of r 1 531. said s Lt.

At the completion of the milling operations or when the mold cavitieshave been out to the proper depth. the operator or attendant actuateshand lever 23 to effect a disengagement between wori and worm wheel andthe shaft 27 ceases to rotate, the bed plates and mold rings carriedthereby will cease their movements toward each other and toward themilling tool. The operator now aanually operates hand wheel 38 to movethe bed plat s and carried mold rings away from each other ashereinbefore described and after the keys 4'? have been disengaged fromgrooves 41:8 and recesses 46 the index rings 441: mold ll carriedthereby are rotated the distance be tween two adjacent notches ac, andthe keys 427 are now reseated to lock the index rings to the bed platesand the parts are ready for a succeeding operation.

it will be understood that the distance between the notches l6represents the distance between the vertical rows of mold cavitiesformed in the rings A and by proper angular arangement of the members ofeach pair of grooves with respect to each other, it is possible toadjust the mold rings so as to provide a staggered arraiuigement of thecavities in the mold rings, illustrated by dotted lines K, Figure 1, butobviously when this is done, the position of the milling tool must beelevated or lowered as the case may be or second milling tool must beemployed.

A mold ring milling machine of my im proved construction iscomparatively simple, can be operated with comparatively little power,is very accurate in the formation of the cavities in the mold rings, andis very efficient in. performing its intended functions.

It will be readily understood that minor changes in the size, form andconstruction of the various parts of my improved mold ing millingmachine can be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope ofwhich is set forth in the appended claims.

I claim as my invention: 1. mold ring milling machine, mulnesoeee tiplecutter, means for indexing the mold rir 's and locking them angularly,and work supporting members arranged to move simultaneously toward saidmultiple cutter.

2. ln a mold ring milling machine, a multiple cutter, work holdingmembers arranged on opposite sides of said cutter and adapted to movetoward and away from the cutter, and mechanism for automaticallyrotating said cutter and moving said members toward said cutter.

in a mold ring milling machine, a cutting tool comprising a shaft, and aplurality of spaced cutting heads carried by said shaft, ach of whichheads comprises a plurality of radially disposed blades having curvedcutting edges and mechanism for automatically :teeding the rings toopposite sides of all of said heads simultaneously.

ln mold ring milling machine, a cutting tool comprising a shaft, aplurality of cutting heads carried thereby, each head comprising aplurality of radially disposed blades, and bearings for said shaftbetween cutter heads.

ln a mold ring milling machine, a cuttool comprising a shaft, aplurality of cutting heads carried thereby, each head con prising aplurality of radially disposed blades, bearings for the ends of saidshaft, and bearings for said shaft between said cutter heads.

6. n mold ring milling machine, a pair of rotatable work holding membersarranged for movement toward and away from each otl er, a nniltiplecutting tool arranged for operation between said members and adapted toengage the peripheral surfaces of the work carried by said membersas thelatter move toward each other, and means for obt 'niug identicalrotation of said members.

a. In a mold ring milling machine, a pair of worl; holding membersarranged for.

movement toward and away from each other, a multiple cutting toolarranged for operation between said members and adapted to engage theperipheral surfaces of the work arried by said members as the lattermove toward each other, means for simultaneously operating the multiplecutter and moving the work holding members toward said outter, and meansfor indexing said members to present different points of the rings tosaid. cutter.

8. in mold ring milling machine, a pair of bed plates arranged to movetoward and from each other, index rings adjust ably carried by said bedplates and adapted to receiv t 1e work to be milled, and a multiplecutter arranged for operation between said bed plates.

9. lln a mold ring milling machine, a pair of led plates arranged tomove toward and away from each other, index rings adjustably carried bysaid bed plates and adapted to receive the work to be milled, a multiplecutter arranged for operation between said bed plates, and means forsimultaneously moving said bed plates toward each other.

10. In a mold ring milling machine, a pair of bed plates mounted formovement toward and away from each other, means for impartingsimultaneous movement to said bed plates, index rings adjustably carriedby said bed plates and which index rings are adapted to receive moldrings, and a milling tool arranged for operation between said bedplates.

11. In a mold ring milling machine, a pair of bed plates mounted formovement toward and away from each other, means for impartingsimultaneous movement to said bed plates, index rings adjustably carriedby said bed plates and which index rings are adapted to receive moldrings, a milling tool arranged for operation between said bed plates,and means for simultaneously operating said milling tool and the bedplate actuating means.

12. In a mold ring milling machine, a pair of members adapted to receiveand retain mold rings, means for simultaneously moving said memberstoward each other, and means for simultaneously forming mold cavities inthe peripheries of the mold rings as the same are moved toward eachother.

13. In a mold ring milling machine, a pair of bed plates arranged tomove toward and away from each other, power operated means for movingsaid members toward each other, adjustable members carried by said bedplates and adapted to receive and retain mold rings, and means forsimultaneously forming a plurality of mold cavities in the peripheriesof the mold rings as the same are carried toward each other upon the bedplates.

14:. In a mold ring milling machine, a frame, a pair of bed platesarranged for movement toward and away from each other upon said frame,work receiving index rings adjustably carried by said bed plates, meansfor locking said index rings to said bed plates, and a milling toolarranged for operation between said bed plates.

15. In a mold ring milling machine, a

frame, a pair of bed plates arranged for movement toward and away fromeach other upon said frame, work receiving index rings adj ustablycarried by said bed plates, means for locking said index rings to saidbed plates, a milling tool arranged for operation between said bedplates, means for simultaneously moving the bed plates toward eachother, and means for operating said milling tool.

16. In a mold ring milling machine, a cutting tool, ring supports ondifierent sides of said tool adapted to be turned to present difierentparts of the ring to said tool, and means for obtaining the same degreeof turning of said supports so that molds milled in the ring on onesupport will be the same distance apart as molds milled in the ring ontheother support.

17.1n a mold ring milling machine, a cutting tool, ring supportsondifferent sides of said tool adapted to be turned to present differentparts of the ring to said tool, and means for securing identical turningof said supports, comprising peripheral notches in said supports andnotch-engaging elements having fixed positions angularly of said tool.

18. In a mold ring milling machine, a rigid supporting frame, a cuttingtool, work holders rotatably mounted on said frame and located onopposite sides of said tool, radial slots in said holders slots in saidframe, and keys for aligning any one of the slots in said holders with aslot in said frame.

In testimony whereof I hereunto afiix my signature this 19th day of May,1920.

GUSTAV KOMAREK.

